Removing/installing cylinder head cover · ar0120d5014c · Mercedes-Benz WIS

AR01.20-D-5014C

Removing/installing cylinder head cover

12.2.96

ENGINE 111.979 in MODELS 901.0, 902.0, 903.0, 904.0

ENGINE 111.984 in MODELS 901.6, 902.6, 903.6, 904.6

D01.20-1000-09

 The graphic shows engine 111.979. The location of the components is also valid for engine 111.984.

1 Idling speed control actuator

2 Intermediate flange

3 Bolt+washer

4 Bolt+washer

5 Cylinder head cover

6 Gasket

7 Spark plug connector

8 Ignition coil

9 Dipstick guide tube (engine 111.979 with automatic transmission)

10 Bolt (engine 111.979 with automatic transmission)

 	Removing/installing
1	Remove air intake hose	Engine 111.979	AR09.10-D-8030C
		Engine 111.984	AR09.10-D-8030F
2	Remove idle speed control actuator (1)	Engine 111.984	AR30.22-D-1152B
		Engine 111.979	AR30.22-D-1152C
3	Detach intermediate flange (2) on intake manifold		AR09.20-D-1310-08C
			*BA09.20-N-1002-02A
4	Remove air pump switchover valve	Engine 111.984	AR14.30-D-7255A
5	Remove purge control valve	Engine 111.984	AR47.30-D-8220A
6	Remove ignition coils (8)		AR15.12-D-2003C
7	Detach spark plug connector (7) from the spark plugs
8	Remove dipstick guide tube (9) for automatic transmission on cylinder head	Engine 111 979 with automatic transmission.	AR27.00-D-0102-01C
9	Disconnect cable harness for actuation of injectors from retaining clamp (arrow) on cylinder head cover (5)
10	Remove cylinder head cover (5)	 Installation: Check condition of seal (6) and replace if necessary.  Clean sealing surfaces.
			*BA01.20-N-1001-01A
11	Install in reverse order
12	Ensure gasket of cylinder head cover (5) is correctly installed		AR01.20-S-5014-01A
13	Check for leaks

 Crankcase ventilation, cylinder head cover

Number	Designation		Engines 111.948/ 978/979/ 984


BA01.20-N-1001-01A	Bolt of cylinder head cover on cylinder head	Nm	9

 Intake manifold, intake manifold preheater

Number	Designation			Engines 111.979/ 984


BA09.20-N-1002-02A	Intermediate flange on intake manifold	M8	Nm	21